Motion-picture machine.



'L. B. LARSEN, 0. I HOLMES & H. e. LARSEN.

MOTION PICTURE MACHINE.

APPLICATION FILED OCT. I2. I917. RENEWED OQT. 3. I918. 1,293,128, aPatentedlieb. 4t, 1919.

2 SHEETSSHFEI 1.

We I Z I 721/670? r5, Zauzls .Zamen, 06mm]. oimes,

I 3? 4642225 Q Zarsenv;

L. B. LARS EN, O. 'J. HOLMES & H. G. L'ARSEN.

MOTION PICTURE MACHINE. AIRPLICATION mgo OCT. 12. 1917. RENEWED0CT.3,1918.

Patented Feb. 4, 1919.

2 SHEETS SHEET 2.

I Imam/Z0719: lauds 5 L a/715676, Oscar I 5 j/arzq 6.262745%, raw/flaw1,293,128. I Application filed October 12,'1917,Seria1No. 196,129.Renewed October UNITED STATES PATENT OFFICE.

LOUIS :e. LARSEN, osce'n J; HOLMES, AND HANS e. LARSEN, or CHICAGO,ILLINOIS, ASSIGNORS TonCMnno'rIoN PICTURE rnomoron COMPANY, ACORPORATION or ILLINOIS.

MOTION-PICT RE MACHINE.

.T 0 allwhom' it may concern Be it known that we,-LoU1s B. LARSEN, OSCARJ. HOLMES, and HANS G. LARBEN, citizens of the United States of America,and residents of Chicago, in the county of Cook, State of Illinois, haveinvented certain new and useful Improvements in M0- tion-PictureMachines, of which the following is "a specification.

ThlS invention relates to motion picture machines, and more especiallyto that type of machines in which the film is intermittently fed pastthe light aperture of the machine. And the has for its object:.

To provide a structural formation and aspresent improvement sociation ofparts whereby the framing or adjustment 'of the picturesof the film withrelation to the light aperture of the machine is attained m a ready,accurate and efiicient manner, and without change in the proper relationof the other accessory mechanisms of the machine, all as willhereinnying drawings Figure l, is a side elevation of a-motion picturemachine embodying the present invention, a hinged side wall or door ofthe inclosing casing being shown in an open condition and in section.

Fig. 2, is a plan view of the mechanism, with the inclosing casing insection.

Fig. 3, is a detail perspective view of the longitudinally adjustablecarriage of the mechanism.

Fig. 4, is a similar view of the track frame for said carriage.

Like reference numerals indicate like parts in the several views.

Referring to the drawings, 1 designates the inclosing casing for themechanism, of

any usual and suitable'form and provided with a hinged side wall or door2 for convenient access to the operating mechanisms and parts mountedwithin said casing.

3 designates the lamp house, arranged in an upper and rear portion ofthe casing 1 and containing the usual light producing incandescentelectric lamp 4, or other usual light producing means of the machine.

5 designates an optical condenser of the usual construction and arrangedin fixed a ssociation with the lamp house 3, and in alined relation withthe filament of the lamp Specification of Letters Patent.

' with an operating knob 3,1918. Serial No. 256,761.

' 6 designates the aforesaid objective ar-- ranged a distance in frontof the condenser Patented Feb. 4,1919.

5, with itsadjustable portion capable of focusing adjustment by a crankarm and p1tman connection 7, with the operating shaft, 8 of the sameextending out through the top wall of the casing 1 and provided orhandle for convenient manual operation. i

9 designates the apertured filmguide or plate by which the picture filmis guided transversely through the optical center of the machine and inproper spaced relation to the rear of the objective 6 aforesaid. Thefilm guide 9 may be of any usual and suitable construction, and in thepresent improvement'is separate from the film feeding mechanism, and isfixed in relation to said mechanism and to the condenser 5 and ob-'jective 6 aforesaid. "The fixed condition of said film guide 9 ispreferably attained by an attachment of the same to the fixed trackframe of the film feeding mechanism above referred to.

l0 designates a track frame, fixedly secured to a side wall of thecasing l and provided with horizontally extending posts 11, to the otherends of which are secured upper and lower longitudinally disposed tracksor slideways 12 for the guidance of the carriage of the film feedingmechanism hereinafter described, in a direction parallel to the opticalaxis of the objective 6 aforesaid.

13 designates the carriage above referred to, preferably formed by apair of vertically disposed plates secured together in spaced relationwith one of said plates having sliding engagement with the aforesaidtrack or slideways 12 aforesaid.

l4 designates a toothed rack secured to the carriage 13, and 15designates an operating pinion, the shaft of which is journaled on thetrack frame 10 and extends out through the top wall of the casing 1forconvenient manual actuation in an adjustment of the .carriage 13 inalongitudinal plane.

' l6 designates a driving shaft by which the intermittent film feedingmechanism and the light shutter of the machine are operated in unison.Said shaft 16 is journaled in the carriage 13, and in addition tothe-usual gearing connections 17 with an operating shaft 18 capable -ofmanual rotation, has

power connections by pulleys and endless belt 19.with an electric motor20 arranged in the casing l-aforesaid. In the type of portable machineshown in Fig. 1 the afore- .said electric motor 20 furnishes the powerapplication for Letters Patent Serial No. I

for operating the film rewinding mechanism hereinafter referredto, andthe details of which "-formthe subject matter of a separate 200,878ffiled Nov. 8, 1917. j 21 designates the light shutter preferably of theradial bladed type, and carried by a shaft 22 journaled longitudinallyon thecarriage 13 aforesaid, so as to be adjustable longitudinallytherewith, and provided at its rear end with-gearing connection 23 withthe driving shaft 16 above described.

24 designates the intermittent film feeding sprocket drum journaled inthe carnage 13 aforesaid, in verticalalinement beneath the film guideor. plate 9 aforesaid and carrying the driven element of an intermlt- 9aforesaid, as shown in dotted lines in Fig.

1, and as usual in the present classof'machines. The carrying shaft ofthe drum 26 is journaled in the carriage 13 aforesaid,

' and receives constant rotation from the controlled and renderedautomatic in action. I

shafts 16,.18 through a train of gears27,

ofwhich the gearfl? above described, forms a part. Said sprocket drum 26is prefer- V ably arranged in a plane toone side of the intermittentfilm feeding sprocket drum 24: aforesaid, and in line with the filmdelivery reel of the machine, while said film feeding sprocket drum24-is'in line'with the film take-up reel of the machine in its normaloperation as a projection apparatus.

The take-up and delivery reels above referred.to,are preferably arrangedin a magazine or casing 28 located in' the inclosing casing l-of' themachine, and are preferably With' the present improvement a longitufdinaladjustment of the carriage 13 and film feeding mechanism mountedthereon, in a direction parallel to the optical axis of the *objectiveb, is adapted to effect an independ: ent-framing' movement oradjustment of the picturefilm in relation to the light apertureof-thefilm guide or plate 9 aforesaid, in

accordance with the rearward or forward adj' ustments of thecarriage 13.In that the light' shutter 21 receives a corresponding adjustmen t, 'therelative and proper adjust 'ment of the same with relation to theassociate mechanisms is preserved without change.

Having thus fully described our said invention, what we claim as new anddesireto secure by Letters Patent, is V guide having fixed relation tosaid objective, and'a film feeding mechanism having adjustment in adirection parallel to the op- .70 1. In a motion picture machine, thecom- 7 l bination of an objective, an apertured filmi tical axis of saidobjective, substantially as 'set forth.

2. In a motion'picture machine, the combination of an objective, anapertured film guide having fixed relation to said objective,

tion parallel to theoptical axis of saidobjective, substantially as setforth.

3. 'In a motion picture machine, the comand a film feeding mechanism andassociated llght shutter having adjustment in a direc.

bination of an objective, an apertured filmf guide having fixed relationto said objec- I tive, a carriage having a sliding adjustment in adirection parallel to the optical axis of said objective,'and a filmfeeding mechanism'mounted on and adjustable with said carriage,substantially as set forth.

l. In a motion' picture machine, the coni- .bination of an objective,ana'pertured film guide having fixedrelation to said objective, a:carriage having a sliding adjustment in a direction parallel to theoptical axis of said objective, and. a film feeding mechanism andassociatedlightshutter mounted.

on and adjustable with said carriage, su bstantially as set forth.

bination of a casing, an objective associated o. In a mo't1onpicturemachine, the comwith said casing, an apertured film guide havingfixed relation to said objective, a

track frame secured to aside wall of said casing and having horizontalposts, longit11- dinally arranged tracks secured to said posts, acarriage sliding in said tracks, in a .direction parallel to the opticalaxis of the objective, means for 1 imparting longitudinal adjustment tosaid carriage, and a film feedin'g'meclianism mounted on and adjustableV with said carriage, substantially as set forth. 6. In a motion picturemachine, the com-' bination of a casing, an objective associated withsaid casing, an apertured film guide having fixed relation to saidobjective, a

track frame secured to aside wall of said casing and having horizontalposts, longitudinally arranged tracks in a direction parallel to theoptical axis of the objective secured to'said posts, a carriage slidingin said Y tracks, means for imparting longitudinal ad ustment to saidcarriage, and a film feed ing mechanism and associated light shutter.mounted on and adjustable with said car-' ri'age, substantially as setforth.

7. In a motion picture machine, the combinationof a casing, an objectiveassoc'ated with said casing, an apertured film guide having fixedrelation to said objective, a track frame secured to a side wall of saidcasing and having horizontal posts, longitudinally arranged trackssecured to said posts, a carriage comprising a pair of separated platesone of which has sliding engagement with said tracks, means forimparting longitudinal adjustment t said carriage, and a film feedingmechanism mounted on and adjustable with said carriage, substantially asset-forth.

S. In a motion picture machine, the combination of a casing, anobjective associated with said casing, an apertured film guide havingfixed relation to said objective, a track frame secured to a side Wallof said casing and having horizontal posts, longitudinally arrangedtracks secured to said posts, a carriage comprising a pair of separatedplates one of which has sliding enga-gement with said tracks, means forimparting longitudinal adjustment to said carriage, and a film feedingmechanism and as sociated light shutter, mounted on and adjustable withsaid carriage, substantially as set forth.

9. In a motion picture machine, the combination of a casing, anobjective associated withsaid casing, an apertured film guide havingfixed relation to said objective, a track frame secured to a side wallof said casing and having horizontal posts, longitudinally arrangedtracks secured to said posts, a carriage sliding in said tracks, in adirection parallel to the optical axis of the objective, a rack andpinion associated with said parts for imparting longitudinal adjustmentto the carriage, and a film feeding mechanism mounted on and adjustablewith said carriage, substantially as set forth.

10. In a motion picture machine, the combination of a. asing, anobjective associated with said casing, an apertured film guide havingfixed relation to said objective, a

track frame secured to a side .wall of said casing and havlng horizontalposts, longitudinally arranged tracks secured to said posts,

a carriage sliding in said tracks in a direc tion parallel to theoptical axis of the ob jective, a rack and pinion associated with saidparts for imparting longitudinal adjustment to the carriage, and a filmfeeding mechanism and' associated light shutter mounted n and adjustablewith said carriage, substantially as set forth.

11. In a motion picture machine, the combination of a casing, anobjective and a condenser arranged in alined andspaced relation in saidcasing, an apertured film guide secured fixedly between said objectiveand condenser, and a film feeding mechanism having adjustment in adirection parallel to the optical axis of said objective, substantiallyas set forth.

12. In a. motion picture machine, the combination of a casing, anobjective and a condenser arranged in alined and spaced rela tion insaid casing, an apcrtured film guide secured fixedly betweensaidobjective and condenser. and a film feeding mechanism and associatedlight shutter having adjr tment in a direction parallel to the opticalaxis of said objective, substantially as set forth.

13. In a motion picture machine, the combination of a casing anobjective and a condenser arranged in alined and spaced rela tion insaid casing, an apertured film guide secured fixedly between saidobjective and condenser, a. carriage having a sliding adj ustment in adirection parallel to the optical axis of said objective, and a filmfeeding mechanism mounted on and adjustable .with said carriage,substantially as set forth.

' l-l. In a motion picture machine, the combination of a casing anobjective and a condenser arranged in alined and spaced relation in saidcasing, an apertured film guide secured fixedly between said objectiveand condenser, a carriage having a sliding adjustment in a directionparallel to the optical axis of said' objective, and a film feedingmechanism and associated light shutter mounted on and adjustable withsaid carriage, substantially as set forth.

Signed at Chicago, Illinois, this 10th day of October, 1917.

LOUIS B. LARSEN.

OSCAR J. HOLMES.

HANS G. LARSEN.

